Apparatus for manufacturing fiber-reinforced concrete through shooting after inserting bubbles into normal concrete and method for manufacturing same

Abstract

The present invention relates to an apparatus for manufacturing fiber-reinforced concrete through shooting after inserting bubbles into normal concrete and a method for manufacturing the same, which: form fiber-mixed concrete in which the bubbles, fiber-mixed materials, and silica fume are mixed in the normal concrete or form the fiber-mixed concrete in which aggregates, water, and the bubbles are put into and mixed with a mixture, in which cement, the fiber-mixed materials, and silica fume are mixed; and then shoots the fiber-reinforced concrete in which excessive air included in the fiber-mixed concrete is reduced by spraying the fiber-mixed concrete with the high-pressure air when the fiber-mixed concrete is discharged, and of which a slump, drastically increased due to the large amount of bubbles, is reduced to a range of the slump of the normal concrete, thereby improving the production capacity of the fiber-reinforced concrete and shortening operating time.

Description

[0001]This application claims the priority of Korean Patent Application Nos. 10-2014-0037842, and 10-2015-0041566, filed on Mar. 31, 2014, and Mar. 25, 2015 in the KIPO (Korean Intellectual Property Office), the disclosure of which is incorporated herein entirely by reference. Further, this application is the National Stage application of International Application No. PCT / KR2015 / 002958, filed Mar. 26, 2015, which designates the United States and was published in Korean. Each of these applications is hereby incorporated by reference in their entirety into the present application.TECHNICAL FIELD[0002]The present disclosure relates to an apparatus and method for manufacturing fiber-reinforced concrete, and more particularly, to an apparatus for manufacturing fiber-reinforced concrete through shooting after inserting bubbles into normal concrete and a method for manufacturing the same, in which a fiber-mixed concrete is formed by mixing bubbles, fiber-mixed material and silica fume into...

AI Technical Summary

Benefits of technology

The present invention is about a new type of concrete made by mixing bubbles, fiber-mixed material, and silica fume into normal concrete or a fiber-mixed concrete. When the fiber-reinforced concrete is discharged, a high-pressure air is blown to reduce excessive air and increase the slump range of the concrete to the normal range. This improves the production capacity, workability, waterproofing property, and durability of the fiber-reinforced concrete. Additionally, the invention enables easy conversion of normal concrete to fiber-reinforced concrete at construction sites, improving construction convenience and economic feasibility.

Problems solved by technology

The fiber-reinforced concrete has drawbacks such as fiber conglomeration (fiber ball) and uneasy putting and dispersion of fiber from a batcher plant at a construction site, and also the fiber is very expensive in comparison to cement concrete.

However, this technique has bad economic feasibility since construction costs are increased due to an increased number of components for fiber dispersion and a complicated inner configuration.

In addition, even though fibers are supplied to mortar by means of the injection ring, mortar is not easily mixed with the fibers, which does not solve fiber conglomeration and also does not ensure uniform mixing of fibers, resulting in deterioration of quality.

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